A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6130-01-502-8271
NSN 5960-01-414-8918
NSN 5905-01-533-1596
NSN 6110-01-532-2573
NSN 6620-01-156-4641
NSN 5935-00-707-5379
NSN 5975-01-278-6576
NSN 6320-01-498-4954
NSN 5990-01-386-5561
NSN 5905-01-198-2219
NSN 5975-01-317-2263
NSN 5960-01-042-7725